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RE: Anyone Own a RT-X 27? - 6/1/2009 3:39 PM

ALFFA164

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Hmmm.... those 109 buck do really pay off right!!!! Jjajajaj... i told you buku was the way to go!

Jay, be carefull... its better to strip servo horns than servo gears. If you are stripping the horn probably your steerign setup is not right, at some point it must binding or your end point is way too open. If you dont check on that an alu horn will hold but you will find yourself replacing servo gears... average 20 bucks the gear kit.

What radio are you using? Stock?

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RE: Anyone Own a RT-X 27? - 6/1/2009 4:38 PM

JayRec

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yes using stock radio, my Spectrum had a problem, sent it back and now they are on back order.
The steering seems to be ok but I do recall lengthening the throw between the servo horn and the linkage. Could that have done it?
As for the pipe, it rocks. I still have some fine tuning but you can see if you watch the video that it adds power for sure, I had to hold back because I was missing corners

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RE: Anyone Own a RT-X 27? - 6/2/2009 1:02 AM

ALFFA164

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Hmmm... how much did you lengthened it? That might be the reason. I was having the same problem with the servo horns and i decided alu horns was the way to solve it. After that the problem transfered to the servo gears and i had to change them like 3 times. Finally i had to re adjust the end points (with digital futaba) and the problem was gone.

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RE: Anyone Own a RT-X 27? - 6/2/2009 8:31 PM

Steve

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I've finally got the stock Super Tigre running the way I want it to. A few of the things that I did was to only run the truck for 3 to 4 minutes at a time for the first half gallon, and never in the lower half of the tank. I added two shims under the head, sealed the engine, went to only running 20% nitro, installed a Nova cooling head, installed a fan type flywheel, and also installed an HPI air filter. I've been running the truck now for about 10 minutes at a time and the temps are staying in around 275* F for the high. on shut down, the temp reads about 250*F. My glow plugs are no longer failing also. I think the break in period for this engine is almost a gallon. I run the truck a little on the rich side on the first run, and it runs just right once its warmed up. I made the mistake of trying to tune the engine on the first run, and chased the needle settings. I've learned a lot about these engines in the process of owning my first RC truck, but I think I've finally got the stock motor running the way it is supposed to run. It runs consistantly once warmed up and I'm having fun with it now. Thanks for every ones help. Duratrax has also been great about the replacement parts.

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RE: Anyone Own a RT-X 27? - 6/4/2009 1:34 AM

BRUSSER

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Gents:
Need a good avdice on witch clutch bell can i use with the Super Tigre engine, trying upgrade step by step, already change cooling head for a Nova; now i want to change the clutch bell and shoes any sugestions will be deeply apreciated.

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RE: Anyone Own a RT-X 27? - 6/4/2009 2:00 AM

ALFFA164

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Axial vented clutch bells and ofna alu shoes

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RE: Anyone Own a RT-X 27? - 6/4/2009 2:16 AM

BRUSSER

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Thanks.

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RE: Anyone Own a RT-X 27? - 6/4/2009 4:44 AM

Steve

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I used the Ofna hardened, vented clutch bell and Ofna aluminum shoes. I put the 16 tooth on, but its a little slower on take-off but is works fine. You might try the 14T and see how it performs.

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RE: Anyone Own a RT-X 27? - 6/8/2009 7:26 PM

Steve

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Placed an order at Tower for some aluminum upgrades. They are going for cheeeep now.

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:02 AM

OddsNEnds

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Hey thanks for the heads up JayRec! Will keep an eye out for those fractures.

quote:

ORIGINAL: JayRec

Thanks OddsNends, the VW body is different but was fun to do for my first try at a body.
As for parts cracking well lets see, the front skid plate both corners that screw into the chassis, the front and rear diff covers, and a couple areas seem to have hairline cracks near screw points. I think they should give us 2 trucks when we buy these, one to drive and one for parts!
I am off to race my brother and some buddies tomorrow, will take some vid and post later on

Still can't get over the bug body, that's KOOL!

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:26 AM

OddsNEnds

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Thanks Skhills.... I did what you said and fabbed up an HPI Hellfire tank (150cc) to the side of the truck and low and be hold..... I ran the truck hard and had a hard time reaching 260 degrees! Finally on the very bottom (1/4 or lower) of the tank the temp ran 275.... But, as soon as I stopped the truck and idled for a few seconds, really just a few seconds, the temps came down to 260 to 255 again. I am impressed! The truck ran better, stronger and so much more consistent than with the stock tank. It even did wheel stands a few times (5). That has never happened except on a rare occasion. This run today, albet only one tank before the sun went down, has been the best the truck has ever ran.

quote:

ORIGINAL: Skhills

i apreciate your input...but...PLEASE REPLACE that tank; or replace your engine in the very short run. I tried every thing under the sun to seal that tank (epoxy, goop, etc. even remelting the plastic. if thats a word. it all worked for about 2 tanks... problem is nitro methane eats right through anything u can put on it. Im only trying to help, not argue..do what works for you, but dont say i didnt tell you.

As far as the tires/wheels go .. i think mine are just shot... they are very wobly and make me uncomfortable at high speeds.... What do you think of the savage wheels and tires? I really like the LST xxl wheels and tires. any thoughts ...

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< Message edited by Lightfoot -- 6/13/2009 1:41 AM >

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:36 AM

OddsNEnds

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That's nuts, Steve... Glad your having success with the ST motor. Wish it was easier, but, seems like you did a lot of good with those mods. Unfortunately, I had a bad carb.... And chased heat issues until I finally bought a new motor. Then changing tank so far has been the biggest success battling the heat issues. Once Duratrax sends me a new one I will install the carb and use the ST motor as a back up.... BTW, what aluminum parts are you getting, curious here....

quote:

ORIGINAL: Steve

I've finally got the stock Super Tigre running the way I want it to. A few of the things that I did was to only run the truck for 3 to 4 minutes at a time for the first half gallon, and never in the lower half of the tank. I added two shims under the head, sealed the engine, went to only running 20% nitro, installed a Nova cooling head, installed a fan type flywheel, and also installed an HPI air filter. I've been running the truck now for about 10 minutes at a time and the temps are staying in around 275* F for the high. on shut down, the temp reads about 250*F. My glow plugs are no longer failing also. I think the break in period for this engine is almost a gallon. I run the truck a little on the rich side on the first run, and it runs just right once its warmed up. I made the mistake of trying to tune the engine on the first run, and chased the needle settings. I've learned a lot about these engines in the process of owning my first RC truck, but I think I've finally got the stock motor running the way it is supposed to run. It runs consistantly once warmed up and I'm having fun with it now. Thanks for every ones help. Duratrax has also been great about the replacement parts.

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:40 AM

OddsNEnds

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Just to add to the clutch and bell combo. I installed an Ofna 16T vented clutch bell with Mugen aluminum clutch and Mugen 1 mm springs. I want to go to a 17T bell, but, will have to mod the motor mount area to get proper gear mesh. So far with this set up I have had no issues and a lot better take off off the line.

quote:

ORIGINAL: BRUSSER

Gents:
Need a good avdice on witch clutch bell can i use with the Super Tigre engine, trying upgrade step by step, already change cooling head for a Nova; now i want to change the clutch bell and shoes any sugestions will be deeply apreciated.

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RE: Anyone Own a RT-X 27? - 6/10/2009 1:53 PM

Steve

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quote:

ORIGINAL: OddsNEnds

That's nuts, Steve... Glad your having success with the ST motor. Wish it was easier, but, seems like you did a lot of good with those mods. Unfortunately, I had a bad carb.... And chased heat issues until I finally bought a new motor. Then changing tank so far has been the biggest success battling the heat issues. Once Duratrax sends me a new one I will install the carb and use the ST motor as a back up.... BTW, what aluminum parts are you getting, curious here....

I purchased both aluminum differential cases and both aluminum transmission cases. I already have aluminum bulkheads and A-arms. The only other aluminum parts I may get is the shock towers once they are on sale. I wish I would have bought aluminum skid plates when I had the chance. The Super Tigre is running very good now. I'm going to try a differant tank also, just to see what happens.

< Message edited by Lightfoot -- 6/13/2009 1:42 AM >

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RE: Anyone Own a RT-X 27? - 6/10/2009 1:59 PM

Steve

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I just checked prices again and Tower has brought the prices back up on some of the parts. Both cases were only $10.00 each for the diffs, and $19.00 each for the tranys. Now I see $24.00 and $45.00. I must have hit it just right. Looks like the rear blue, and the front purple is still on the sale price though.

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RE: Anyone Own a RT-X 27? - 6/10/2009 3:49 PM

xCrucialx

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quote:

ORIGINAL: Steve

I've finally got the stock Super Tigre running the way I want it to. A few of the things that I did was to only run the truck for 3 to 4 minutes at a time for the first half gallon, and never in the lower half of the tank. I added two shims under the head, sealed the engine, went to only running 20% nitro, installed a Nova cooling head, installed a fan type flywheel, and also installed an HPI air filter. I've been running the truck now for about 10 minutes at a time and the temps are staying in around 275* F for the high. on shut down, the temp reads about 250*F. My glow plugs are no longer failing also. I think the break in period for this engine is almost a gallon. I run the truck a little on the rich side on the first run, and it runs just right once its warmed up. I made the mistake of trying to tune the engine on the first run, and chased the needle settings. I've learned a lot about these engines in the process of owning my first RC truck, but I think I've finally got the stock motor running the way it is supposed to run. It runs consistantly once warmed up and I'm having fun with it now. Thanks for every ones help. Duratrax has also been great about the replacement parts.

How many shims total do you have? I have tried 2 or 3 shims, medium and cold plugs, 15% and 20% nitro. None if it helps my temps stay down. I have the Nova head and it helps keep it cool a little longer but eventually the heat will soak in and it runs over 300. I've seen it as high as 400 according to my temp gauge. The cylinder walls and piston aren't scored and it still has good compression but I know that won't last long. I am going to have to look into getting a new fuel tank to see if that helps. looks like it has been working for others here. I like the mounting inside the rear bumper area as that shouldn't see any hard impacts.

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RE: Anyone Own a RT-X 27? - 6/10/2009 6:31 PM

OddsNEnds

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WOW! That's some extreme temperatures!!! Have you sealed your ST motor? Carb mounting area, pinch screws and the rear backing plate. Also, seal the tank pressure inlet and fuel outlet. And if you have not changed your fuel lines recently, they can wear out and have pinholes that are not visible to the naked eye. After all of the above, my ST never ran hotter than 300 degrees and the Axial as well. Atleast I never let it get higher. I always freaked and shut them down to cool.

If you try a new tank, the Hellfire tank will fit in the back as well. But, with the stock plastic bumper I am worried that it will be more vulnerable back there. I may move mine if I pick up an aluminum rear bumper and figure out how I can mount a body over it.

< Message edited by Lightfoot -- 6/13/2009 1:43 AM >

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RE: Anyone Own a RT-X 27? - 6/10/2009 6:44 PM

xCrucialx

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I did seal the carb/motor as you described. I haven't done the tank yet. I do have some new fuel line so I will try that next. The truck is only 3 or 4 months old with about a gallon of fuel through it. I assumed the fuel lines would be ok still. Cheap enough to change though. How many total shims do you have now?

I am getting those temps while still running richer than I need to as It is not getting up to speed and shifting like it should. If I lean it out more it runs awesome while still giving good smoke until it heats up.

< Message edited by Lightfoot -- 6/13/2009 1:44 AM >

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:09 PM

OddsNEnds

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Wow, unreal that you are running rich enough to not be able to shift to second. Yet, still having temp issues when you do lean it out. How lean is your low end needle? Can you richen it and lean out the high end needle and still get a good idle?

If you have to much slop in your slide barrel of your carb, that could be leaking too. That was what was wrong with mine. It was so loose that it would actually come out of the idle set screw track and since it was that loose it leaked bad. The only fix would be to get a new carb. Waiting on mine from Duratrax.

Also, is there any noticeable binding anywhere in your drivetrain? Outdrives, spur gear to clutch bell mesh, blown ring and pinion gears....etc, etc... The outdrives on the diff can excessively wear causing some binding issues that would not affect the running of the vehicle, but, could put enough bind to affect the workload of the motor.

Oh yeah, I never added shims to both motors. The ST came with 2 shims. I reused them when installing the Nova head as well.

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:23 PM

xCrucialx

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It is shifting it's just taking longer than it should. I can tell the power is not there but I was trying to keep the temps under control as I was racing at a track for the first time. Obviously it didn't do that much to help since it got up to 400 that day. I shut it down and let it cool completely then and fired it back up a little later.

< Message edited by Lightfoot -- 6/13/2009 1:36 AM >

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RE: Anyone Own a RT-X 27? - 6/10/2009 7:53 PM

ALFFA164

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How about bearings? check for worn out bearings... those can cause a lot of binding. Your diffs??? Have you ever checked if they have some lube in them?

Brakes??? are you sure your brakes are 100% free when you hit the throtle? Did you change your tires to bigger ones???

What fuel brand?

Also check for dirt in the needles.... do you use a fuel filter?

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RE: Anyone Own a RT-X 27? - 6/10/2009 8:01 PM

xCrucialx

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Everything seems to spin freely. I haven't opened the diffs yet. I haven't had the time to take it all apart. Brakes are free except when braking. I do have a fuel filter and the tires are stock.

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RE: Anyone Own a RT-X 27? - 6/10/2009 10:18 PM

BRUSSER

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Hey guys; thanks a lot for all your help. I have another question, Really don't want to expend a lot of money in the super pooper, in the clutch shoes what about the dynamite alu shoes money wise they are cheaper than the offna but what about quality are they any good. So far engine is running good , i put a Nova cooling head and so far things are running smooth, but until engine blew don't want to put a lot of money on it.That's my question about the dynamine clutch shes. Thanks

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RE: Anyone Own a RT-X 27? - 6/11/2009 12:02 AM

ALFFA164

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Ive heard in some buggy forums they last a very long time and perform really good. I think you wont regret if you get them.

The Duratrax shoes also work fine. Unbelievable but actually it is a good duratrax product (alu shoes)

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RE: Anyone Own a RT-X 27? - 6/11/2009 12:17 AM

readster

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hey ALFFA thanks for hooking me up with Paul Truggy was shipped today woo hoo can't wait

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